Immunogen sequence: MAMSSGGSGG GVPEQEDSVL FRRGTGQSDD SDIWDDTALI KAYDKAVASF KHALKNGDIC ETSGKPKTTP KRKPAKKNKS QKKNTAASLQ QWKVGDKCSA IWSEDGCIYP ATIASIDFKR ETCVVVYTGY GNREEQNLSD LLSPICEVAN NIEQNAQENE NESQVSTDES ENSRSPGNKS DNIKPKSAPW NSFLPPP; Positive Samples